2.5/Paint:

* Some initial work on a new paint abstraction, PaintStroke. For now, most of the code just pulls out stroke-related stuff from sculpt mode, next step is to integrate the other paint modes to use this. It'll enable stuff like smooth stroke for all the paint modes with less code duplication.

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/editors/space_view3d/view3d_view.c b/source/blender/editors/space_view3d/view3d_view.c
index 58b7a70a128..ce7b6ba454d 100644
--- a/source/blender/editors/space_view3d/view3d_view.c
+++ b/source/blender/editors/space_view3d/view3d_view.c
@@ -63,6 +63,7 @@
 #include "RE_pipeline.h"	// make_stars
 
 #include "BIF_gl.h"
+#include "BIF_glutil.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -543,6 +544,18 @@ void view3d_get_object_project_mat(RegionView3D *rv3d, Object *ob, float pmat[4]
 	Mat4MulMat4(pmat, vmat, rv3d->winmat);
 }
 
+/* Uses window coordinates (x,y) and depth component z to find a point in
+   modelspace */
+void view3d_unproject(bglMats *mats, float out[3], const short x, const short y, const float z)
+{
+	double ux, uy, uz;
+
+        gluUnProject(x,y,z, mats->modelview, mats->projection,
+		     (GLint *)mats->viewport, &ux, &uy, &uz );
+	out[0] = ux;
+	out[1] = uy;
+	out[2] = uz;
+}
 
 /* use above call to get projecting mat */
 void view3d_project_float(ARegion *ar, float *vec, float *adr, float mat[4][4])